What happened in Coronation Street to cause the death of Molly and Ashley?

Answer 1

He died saving Nich Tilsely and Peter Barlow. He was crushed by the Joinery bars structure. He was holding up a beam alowing the others to get to safety. It worked but he payed the ultimate price

Answer 2

2010 was the 50th anniversary of the show. They had a dramatic episode that year which featured a tram crash. Molly Dobbs and Ashley Peacock were killed when the tram crashed onto the street. They were both in buildings on the street and were crushed when the buildings are damaged.